﻿<!DOCTYPE html> 
<html lang="en"> 
<head> 
 <meta charset="UTF-8"> 
 <title>Title</title> 
 <style type="text/css"> 
 html, body { 
  margin: 0; 
  height: 100%; 
 } 
 canvas { 
  display: block; 
 } 
 </style> 
</head> 
<body onload="draw();"> 
  
</body> 
	<script src="three.js"></script>
	<script src="js/controls/OrbitControls.js"></script>
	<script src="js/libs/stats.min.js"></script>
<script> 
 var renderer; 
 function initRender() { 
 renderer = new THREE.WebGLRenderer({antialias: true}); 
 renderer.setSize(window.innerWidth, window.innerHeight); 
 document.body.appendChild(renderer.domElement); 
 } 
  
 var camera; 
 function initCamera() { 
 camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 10000); 
 camera.position.set(0, 0, 40); 
 camera.up.set( 0, 0, 1 );
 } 
  
 var scene; 
 function initScene() { 
 scene = new THREE.Scene(); 
 } 
  
 var light; 
 function initLight() { 
 scene.add(new THREE.AmbientLight(0x404040)); 
  
 light = new THREE.DirectionalLight(0xffffff); 
 light.position.set(1, 1, 1); 
 scene.add(light); 
 } 
  
 var fontModel; 
 function initModel() { 
 var font; 
 var loader = new THREE.FontLoader(); 
 loader.load("fonts/gentilis_regular.typeface.json", function (res) { 
  font = new THREE.TextBufferGeometry("fdsfasd", { 
  font: res, 
  size: 100, 
  height: 60 
  }); 
  
  font.computeBoundingBox(); // 运行以后设置font的boundingBox属性对象，如果不运行无法获得。 
  //font.computeVertexNormals(); 
  
  var map = new THREE.TextureLoader().load("UV_Grid_Sm.jpg"); 
  var material = new THREE.MeshLambertMaterial({map:map,side:THREE.DoubleSide}); 
  
  fontModel = new THREE.Mesh(font,material); 
  
  //设置位置 
  fontModel.position.x = - (font.boundingBox.max.x - font.boundingBox.min.x)/2; //计算出整个模型的宽度的一半 
  fontModel.position.y = - 50; 
  fontModel.position.z = - 30; 
  
  scene.add(fontModel); 
 }); 
 } 
  
  
 //用户交互插件 鼠标左键按住旋转，右键按住平移，滚轮缩放 
 var controls; 
 function initControls() { 
  
 controls = new THREE.OrbitControls(camera, renderer.domElement); 
  
 // 如果使用animate方法时，将此函数删除 
 //controls.addEventListener( 'change', render ); 
 // 使动画循环使用时阻尼或自转 意思是否有惯性 
 controls.enableDamping = true; 
 //动态阻尼系数 就是鼠标拖拽旋转灵敏度 
 //controls.dampingFactor = 0.25; 
 //是否可以缩放 
 controls.enableZoom = true; 
 //是否自动旋转 
 controls.autoRotate = false; 
 //设置相机距离原点的最远距离 
 controls.minDistance = 200; 
 //设置相机距离原点的最远距离 
 controls.maxDistance = 2000; 
 //是否开启右键拖拽 
 controls.enablePan = true; 
 } 
  
 function render() { 
 renderer.render(scene, camera); 
 } 
  
 //窗口变动触发的函数 
 function onWindowResize() { 
 camera.aspect = window.innerWidth / window.innerHeight; 
 camera.updateProjectionMatrix(); 
 render(); 
 renderer.setSize(window.innerWidth, window.innerHeight); 
  
 } 
  
 function animate() { 
 //更新控制器 
 controls.update(); 
 render(); 
  
 //更新性能插件 
//  stats.update(); 
 requestAnimationFrame(animate); 
 } 
  
 function draw() { 
 initRender(); 
 initScene(); 
 initCamera(); 
 initLight(); 
 initModel(); 
 initControls(); 
//  initStats(); 
  
 animate(); 
 window.onresize = onWindowResize; 
 } 
</script> 